Drill-rig.



L. W. APPLEMAN. DRILL RIG. APPLICATION FILED NOV. 17. 1910.

Patented Nov. 11, 1913.

Inventor LEWIS WOR'II-IINGTON APPLEMAN, 0F CARL JUNCTION, MISSOURI.

DRILL-BIG.

orelei.

Specification of Letters Patent.

Patented Nov. 11, 1 913.

Application filed November 1'7, 1910. Serial No. 592,878.

To all whom it may concern:

lie it known that I, LEWIS W. APPLEMAN, a citizen of the United States, residing at- Carl Junction, in the county of Jasper and State of Missouri, have invented a new and useful Drill-Rig, of which the following is a specification.

lhis invention has relation to drill rigs and consists in the novel construction and arrangement of its parts as hereinafter shown and described.

The object of the invention is to provide a drill rig in which is used a comparatively short metallic cable trained over sheaves, some of which are located upon a walking beam, in such manner that the dependant end of the said cable may be reciprocated vertically as the walking beant oscillates. Means is provided for shortening or length eninn' the said cable and for maintaining the same at an adj usted length. A clamping device is carried by the said cable and is adapted to engage a relatively long hemp or Manila cable of the usual form to which the drilling tool is attached.

in the accompanying drawing: Figure 1 is a side elevation of the drill rig and Fig. 2 is a top plan view of the same. Fig. 3 is a detail view of a part of the rig.

The drill apparatus to which the rig is applied consists of the usual wheel mounted platform 1. upon which is located a samson A derrick 3 of usual pattern is upon the said platform 1 and a power shaft 1 is journaled for rotation upon the said platform. A crank arm 5 is fixed to the shaft 1 and one end of a link 6 is pivotally connected with one end of the said crank arm and the other end of the said link is pivotally connected with one end of a walking beam 7 which in turn is pivoted upon the upper end of the samson post 2. A sheave pulley 8 is journaled for rotation at the outer end of the walking beam 7 and a sheave pulley 9 is journaled for rotation at the intermediate portion of the said walking beam 7 and also at the upper end of the samson post 2. A shaft 10 is also journaled at one end upon the platform 1 and at its other end in an eccentric or stub shaft 11' having a. lever 11. One end of an operating rod 12 is pivotally connected with the eccentric lever 11 and the other end portion of the said rod 12 passes through a guide 13 attached to the platform 1 and located. in the vicinity of the end of the said platform.

post 2. mounted A friction disk 15 is fixed to the The rod 12 is slidably received. in the guide 13 and the said rod in the vicinity of: its end is provided with; a series of notches 1a which are adapted to engage the guide 13 whereby the said rod. is restrained againstlongitudinal movement through the guide. intermediate portion of the shaft 10 and a friction disk 16 is fixed to the intermediate portion of the shaft 4-. The friction disk 15 at times is adapted to be brought in frictional contact with the periphery of the disk 16. A Windinn; d rum 18 is mounted upon the shaft 10 and is adapted to rotate with the same upon the eccentric lever 11.

A relatively short cable 19, preferably formed from wire is provided at one end with a clamping device 20 and the said cable is trained over the pulley sheaves 8 and 9, thence down under a pulley sheave 21 journaled upon the platform 1 and thence is arranged to wind upon and unwind from the drum 18. A brake block in the form of a shoe 23 is mounted upon the platform 1 adjacent the periphery of the friction disk 15. A rod 2 1 is secured at one end to a post 25 mounted upon the platform 1 and the said rod passes transversely through the upper portion of the block or shoe 23 and is held in an adjusted position by means of a nut 26 which is screwthrcaded upon the end of the said rod and bears against the side of the said block or shoe 23.

From the above description it will be seen that as the walking beam 7 is oscillated upon its pivotal support at the upper end of the .samson post 2 the outer end portion of the comparatively short cable 1.9 will be reciprocated vertically and by the con necting clamp 20 the cable 22 will be moved correspondingly. hen it is desired to lengthen or shorten the cable 19 in order that the tool carried by the cable 22 may be raised or lowered in the well being drilled an operator will manipulate the rod 12 to move the same longitudinally. When it is desired to raise the tool within the well the rod 12 is moved so that the eccentric lever 11 is swung about the axis of the shaft 10 and the eccentric or stub shaft 11 carried thereby is turned so that the periphery of the friction disk 15 is carried away from the brake block 23 and is moved into engagement with the periphery of the friction disk 16. Inasmuch as the said friction disk 16 is rotating in unison with tie shaft 4 the said friction disk 15 will be turned and the drum 18 will be rotated whereby the cable 19 is wound upon the said drum. in order to lower the tool in the well the operator moves the rod 12 so that the eccentric lever 11 is turned in the reverse direction to that net above described 'hereby the periphery of the friction disk is brought into engagement with the rake block or shoe 23. This holds the said tion disk 15 and its attached drum at a e of rest. Then by permitting the said disk 1:; to slip against the face of the block or shoe the cable 19 may unwind from he drum 18 and thus the tool carried by the cable is permitted to lower into the wel... Therefore it will be seen that a simple and an effective drill rig is provided which may be manipulated to shorten the cable 19 as the cable 22 is being raised in the hole and thus when it is desired to adjust the cable 22 in length with relation to the cable 19 and prior to stopping the operation of he drill rig the operator may permit the cable 19 to wind upon the drum 18 and thus the tools are elevated above the bottom of the hole and consequently cannot become wedged by the chips sanding in or becoming located between the sides of the said tool and the sides of the hole. At the same time, during the drilling operation all of the ad'- vantages are had which are incident to relying upon the strength of the cable 22 during its downward movement in order to bring the lower end of the tool in forcible contact with the bottom of the hole.

Having described the invention, what I claim as new and desire to secure by Letters Patent is:

1. In a drill rig, the combination of a platform, a shaft extending transversely thereof, bearings disposed upon said platform, one of said bearings directly supporting one end of said shaft, a winding drum secured to said shaft adjacent the just mentioned end, a stub shaft rotatably mounted in the other of said bearings and provided with a bore extending partially therethrough, the said bore being formed eccentrically with respect to the axis of said stub shaft the bore of the said stub shaft receiving the cm the other end of the ,first mentioned shaft, and a lever formed integral with the outer ex remity of said stub shaft adapted to oscillate the same, to thereby shift one end of the first mentioned shaft, a driving fiction disk, a brake shoe, a friction disk secured to the said first mentioned shaft and adapted to contact with the said driving friction disk and the said brake shoe, a samson post secured to said platform, a walking beam supported thereabove, a. cable wound upon said drum and extending over said walking beam adapted to reciprocate a drill by the movement of said walking beam.

2. In a drill rig, the. combination of a platform, a samson post secured thereto and extending upwardly therefrom, a rod pivotally secured to the upper end of said samson post, a walking beam with spaced side walls fulcrumed upon said rod, a pulley rotatably mounted upon said pivoted rod dis posed between the side walls of said walkbeam, a pulley rotatably secured to the outer extremity of said walking beam, a driven shaft extending transversely of said platform and beyond the edges of the same, a crank arm rigidly secured to one extremity of said shaft, and a pitman connecting the said crank arm and the inner extremity of said walking beam, the said walking beam extending at an angle to the longitudinal axis of the said platform to bring the inner end of the same directly above said crank arm, a second shaft extending parallel to the first mentioned shaft and provided with a winding drum adjacent one end thereof, a friction disk adjacent the other end of said second mentioned shaft, a stub shaft mounted for rotation and provided with a bore extending partially therethrough, said bore former eccentric with respect to the axis of said stub shaft, said bore adapted to receive therein the end of said second mentioned shaft adjacent the friction disk, a lever rigidly secured to the outer extremity of said stub shaft and adapted to rotate the same to thereby shift the end of said second mentioned shaft, a friction disk rigidly secured to the first mentioned shaft, a brake shoe secured to said platform, said friction disk mounted upon the second mentioned shaft adapted to be moved into contact with said friction disk and with said brake shoe, and a cable wound upon said drum and extending over the said Samson post pulley and the walking beam pulley and secured to drill adapted to reciprocate the same by a movement of said walking beam, and a notched lever secured to said stub shaft lever adapted to hold the same in any desired position.

in testimony that 1 claim the foregoing as my own, 1 have hereto afhxed my signature in the presence of two witnesses.

LEWES WORTHINGTON APPLEHAN.

Witnesses 5. 1V. FREEMAN, J. C. TAYLOR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

